Its lands were probably a gift of Count Bernhard of Spanheim-Marburg (Maribor), brother of Duke Engelbert of Carinthia, and his wife Kunigunde, daughter of Margrave Ottokar II of Styria.
Part of the premises and lands were bought at auction on 10 November 1788 by the brothers Johann and Christoph Moro, who set up a textile factory here.
The rise of the firm "Gebrüder Moro" was spectacular; in 1816 the Austrian Emperor Francis I of Habsburg visited the factory with his wife Caroline Augusta of Bavaria.
In 1925 Adeline von Botka, the last surviving member of the family, sold the textile factory "Gebrüder Moro" to Baron Josef Aichelburg-Zosenegg.
In 1970 the Austrian government bought the buildings and set up a secondary school here in 1977, which in 1980 became independent as the "Realgymnasium unter besonderer Berücksichtigung der musischen Ausbildung".